package com.yh.gulimall.product.service.impl;

import com.yh.gulimall.product.entity.AttrEntity;
import com.yh.gulimall.product.service.AttrService;
import com.yh.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.yh.gulimall.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.yh.common.utils.PageUtils;

import com.yh.gulimall.product.dao.AttrGroupDao;
import com.yh.gulimall.product.entity.AttrGroupEntity;
import com.yh.gulimall.product.service.AttrGroupService;
import com.yh.common.utils.Query;
import org.springframework.util.StringUtils;

import javax.annotation.Resource;

@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {


    @Resource
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        //我们一个查询框查的可能是分组id，也可能是分组名
        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        //如果不是key不为null，说明有参数
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id", key).or().like("attr_group_name", key);
            });
        }
        if(catelogId==0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }else{
            wrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }
    }

    /**
     * 根据分类id查询出分组以及关联的id
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1.查询当前三级分类下的分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        //2.查询组里的所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(item -> {
            AttrGroupWithAttrsVo withAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(item, withAttrsVo);
            //查询每个分组关联的属性
            List<AttrEntity> attrs = attrService.getRelationAttr(item.getAttrGroupId());
            withAttrsVo.setAttrs(attrs);
            return withAttrsVo;
        }).collect(Collectors.toList());
        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        //1、查出当前spu对应所有属性的分组信息 以及当前分组下所有属性的对应值
        List<SpuItemAttrGroupVo> attrGroupVos=this.getBaseMapper().getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return attrGroupVos;
    }

}